Introduction: In this study, we investigated the effects of treatment with a transurethral incision (TUI) for congenital urethral stenosis, which was accompanied by diurnal and nocturnal enuresis. Methods: We recruited 21 young males who presented to our department for the treatment of diurnal and nocturnal enuresis from January 2010 to March 2014. All patients underwent TUI due to urethral stricture found by a close investigation. We surveyed each case to evaluate the improvement of diurnal and/or nocturnal enuresis after TUI. Results: One and a half years after TUI, an improvement in diurnal enuresis was observed in 17 of 21 cases (80.9%), whereas that of nocturnal enuresis was observe in only 7 of 21 cases (33.3%), showing the significant contribution of TUI to the improvement of diurnal enuresis (p = 0.001). In the case of diurnal enuresis, continual improvement was observed more than a year after surgery, whereas no improvement was observed in nocturnal enuresis at more than 6 months after surgery. Conclusion: TUI is more effective for diurnal enuresis than nocturnal enuresis. At postoperative 6 months, clinicians should thus consider other etiologies for unresponsive cases and start other treatment options. ? 2016 S. Karger AG, Basel.
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